Water Heaters

WaterMaster

WaterMaster 25

Stand alone hot water generator

# A1002669

  • Gas
  • Hot Water Heater
  • Standard
  • Concentric
  • Floor installation
  • Certified EN89 - Ecodesign Lot 2 (EN 812/2013 - EN 814/2013)
  • Equipped with ACVMax burner and modbus controls
  • Condenses in hot water mode
  • Delivers an exceptional peak and continuous volumes of hot water
  • Stainless Steel domestic hot water tank - no anode protection required
  • Space saving footprint - reduced plant-room space requirement
  • Stainless steel heat exchanger reduces maintenance and increases system lifespan
  • Multiple units can be grouped in cascade for larger applications or back up
  • Vented or unvented use - Mains systempak available
  • Available in Natural gas and LPG
  • TANK-IN-TANK TECHNOLOGY
  • Also available in 70-85-120kW.

Legend

  1. ACVMax Control panel
  2. NTC sensor (primary circuit)
  3. High efficiency circulator pump
  4. Condensate recovery dish
  5. Electrical panel (with spare fuses at the back)
  6. “Tank-in-Tank” hot water production tank
  7. Flue gas exhaust tube
  8. Indirect water pre-heater
  9. Primary circuit
  10. Pressure sensor

Characteristics

Capacity (total) 196 L
Heating surface DHW tank 2,2 + 0,6
Coil capacity 0 L
Capacity (domestic hot water) 96 L
Connection - DHW 1 M inches
Max operating temperature (primary) 87 °C
Max service pressure (DHW) 8,6 bar
Max service pressure heating (primary) 3 bar
Weight (empty) 177 kg

Hot water performances

Peak flow at 40°C 361 L/10’
Peak flow 1st hour at 40°C 1018 L/60’
Continuous flow at 40°C 788 L/h
Peak flow 1st hour at 45°C 865 L/60’
Continuous flow at 45°C 676 L/h
Peak flow at 60°C 183 L/10’
Peak flow 1st hour at 60°C 577 L/60’
Continuous flow at 60°C 473 L/h
Pre-heating time from 10 to 80°C (Heat source: boiler) 35 min
Input max (heating) LCV 25 kW
Input max (heating) HCV 27,8 kW
Connection - heating 1 F Ø inches
Connection - gas 3/4 M Ø inches
Water pressure drop boiler at Δt = 20°C 3 mbar
Gas flow rate (max output) 2,66 m³/h
Gas flow rate G25 (max output) 2,96 m³/h
Chimney connection 80/125 Ø mm
Operating voltage 230 V
Protection IP 30
Electrical consumption 95 W
NOx emissions max output 64 mg/kWh
Dim. - Depth (w/o conn.) 708 mm
Dim. - Height (w/o conn.) 1755 mm
Dim. - Width or Diameter (w/o conn.) 600 mm
Dim. - Depth (with conn.) 740 mm
Dim. - Height (with conn.) 1755 mm
Dim. - Width or Diameter (with conn.) 600 mm

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